establishing ppp link over GPRS

Hi All,
I am not sure what is going on here, I have a new RB411U with a simcom 5220 card in it. I just cant extablish an internet link no matter what I try.

It all seems to work fine as i can see the device and its channels under the ports

[admin@MikroTik] /port> pr
Flags: I - inactive 
 #   NAME                               CHANNELS USED-BY                             BAUD-RATE
 0   serial0                                   1 Serial Console                      auto     
 1   usb2                                      5                                     9600

If I scan for networks I am getting the networks - here is my ppp config and the networks.

[admin@MikroTik] /interface ppp-client> pr
Flags: X - disabled, R - running 
 0 X  name="ppp-out1" max-mtu=1500 max-mru=1500 mrru=disabled port=usb2 d
      info-channel=2 apn="internet.mtn" pin="" user="" password="" profil
      phone="*99#" dial-command="ATDT" modem-init="" null-modem=no dial-o
      add-default-route=yes use-peer-dns=yes keepalive-timeout=30 
      allow=pap,chap,mschap1,mschap2 
[admin@MikroTik] /interface ppp-client> sc 0
Flags: C - current, A - available, F - forbidden 
  OPERATOR                           CODE ACCESS-TECHNOLOGY                     SIGNAL-STRENGH
A MTN-SA                            65510 GSM compact                          
C MTN-SA                            65510 3G                                               -63
F VodaCom-SA                        65501 3G                                   
F VodaCom-SA                        65501 GSM compact                          
F Cell C                            65507 GSM compact

Whe i try to establish a connection I get the following in my logs (debugging on ppp turned on)

00:48:41 async,ppp,info ppp-out1: initializing... 
00:48:41 async,ppp,info PPP: ppp-out1: initializing... 
00:48:41 async,ppp,info ppp-out1: reseting link... 
00:48:41 async,ppp,info PPP: ppp-out1: reseting link... 
00:48:41 system,info device changed by admin 
00:48:42 async,ppp,info ppp-out1: initializing modem... 
00:48:42 async,ppp,info PPP: ppp-out1: initializing modem... 
00:48:43 async,ppp,info ppp-out1: dialing out... 
00:48:43 async,ppp,info PPP: ppp-out1: dialing out... 
00:48:43 async,ppp,debug PPP: ppp-out1: LCP lowerup 
00:48:43 async,ppp,debug PPP: ppp-out1: LCP open 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: sent LCP ConfReq id=0x27 
00:48:43 async,ppp,debug,packet PPP:    <magic 0x70f7e389> 
00:48:43 async,ppp,debug,packet PPP:    <pcomp> 
00:48:43 async,ppp,debug,packet PPP:    <accomp> 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: rcvd LCP ConfReq id=0x54 
00:48:43 async,ppp,debug,packet PPP:    <asyncmap 0x0> 
00:48:43 async,ppp,debug,packet PPP:    <magic 0x12abe1d> 
00:48:43 async,ppp,debug,packet PPP:    <pcomp> 
00:48:43 async,ppp,debug,packet PPP:    <accomp> 
00:48:43 async,ppp,debug,packet PPP:    <auth  chap> 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: sent LCP ConfAck id=0x54 
00:48:43 async,ppp,debug,packet PPP:    <asyncmap 0x0> 
00:48:43 async,ppp,debug,packet PPP:    <magic 0x12abe1d> 
00:48:43 async,ppp,debug,packet PPP:    <pcomp> 
00:48:43 async,ppp,debug,packet PPP:    <accomp> 
00:48:43 async,ppp,debug,packet PPP:    <auth  chap> 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: rcvd LCP ConfAck id=0x27 
00:48:43 async,ppp,debug,packet PPP:    <magic 0x70f7e389> 
00:48:43 async,ppp,debug,packet PPP:    <pcomp> 
00:48:43 async,ppp,debug,packet PPP:    <accomp> 
00:48:43 async,ppp,debug PPP: ppp-out1: LCP opened 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: rcvd LCP DiscReq id=0x55 
00:48:43 async,ppp,debug,packet PPP:     <magic 0x12abe1d> 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: rcvd CHAP Challenge id=0x1 
00:48:43 async,ppp,debug,packet PPP:     <challenge len=10> 
00:48:43 async,ppp,debug,packet PPP:     <name UMTS_CHAP_SRVR> 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: sent CHAP Response id=0x1 
00:48:43 async,ppp,debug,packet PPP:     <response len=10> 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: rcvd CHAP Success id=0x1 
00:48:43 async,ppp,info ppp-out1: authenticated 
00:48:43 async,ppp,info PPP: ppp-out1: authenticated 
00:48:43 async,ppp,debug PPP: ppp-out1: IPCP lowerup 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: sent IPCP ConfReq id=0x43 
00:48:43 async,ppp,debug,packet PPP:     <addr 0.0.0.0> 
00:48:43 async,ppp,debug,packet PPP:     <ms-dns 0.0.0.0> 
00:48:43 async,ppp,debug,packet PPP:     <ms-dns 0.0.0.0> 
00:48:43 async,ppp,debug PPP: ppp-out1: IPCP open 
00:48:43 async,ppp,debug PPP: ppp-out1: IPV6CP open 
00:48:43 async,ppp,debug PPP: ppp-out1: MPLSCP lowerup 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: sent MPLSCP ConfReq id=0x1d 
00:48:43 async,ppp,debug PPP: ppp-out1: MPLSCP open 
00:48:43 async,ppp,debug PPP: ppp-out1: BCP open 
00:48:43 async,ppp,debug PPP: ppp-out1: CCP lowerup 
00:48:43 async,ppp,debug PPP: ppp-out1: CCP open 
00:48:43 async,ppp,debug,packet PPP:  ppp-out1: rcvd LCP ProtRej id=0x56 
00:48:43 async,ppp,debug,packet PPP:      82 81 01 1d 00 04 
00:48:44 async,ppp,debug,packet PPP:  ppp-out1: rcvd IPCP ConfNak id=0x43 
00:48:44 async,ppp,debug,packet PPP:     <ms-dns 10.11.12.13> 
00:48:44 async,ppp,debug,packet PPP:     <ms-dns 10.11.12.14> 
00:48:44 async,ppp,debug,packet PPP:     <ms-wins 10.11.12.13> 
00:48:44 async,ppp,debug,packet PPP:     <ms-wins 10.11.12.14> 
00:48:44 async,ppp,debug,packet PPP:  ppp-out1: sent IPCP ConfReq id=0x44 
00:48:44 async,ppp,debug,packet PPP:     <addr 0.0.0.0> 
00:48:44 async,ppp,debug,packet PPP:     <ms-dns 10.11.12.13> 
00:48:44 async,ppp,debug,packet PPP:     <ms-dns 10.11.12.14> 
00:48:44 async,ppp,debug,packet PPP:     <ms-wins 10.11.12.13> 
00:48:44 async,ppp,debug,packet PPP:     <ms-wins 10.11.12.14> 
00:49:13 async,ppp,debug,packet PPP:  ppp-out1: sent LCP EchoReq id=0x0 
00:49:13 async,ppp,debug,packet PPP:     <magic 0x70f7e389> 
00:49:14 async,ppp,debug PPP: ppp-out1: LCP missed echo reply 
00:49:14 async,ppp,debug,packet PPP:  ppp-out1: sent LCP EchoReq id=0x1 
00:49:14 async,ppp,debug,packet PPP:     <magic 0x70f7e389> 
00:49:15 async,ppp,debug PPP: ppp-out1: LCP missed echo reply 
00:49:15 async,ppp,debug,packet PPP:  ppp-out1: sent LCP EchoReq id=0x2 
00:49:15 async,ppp,debug,packet PPP:     <magic 0x70f7e389> 
00:49:16 async,ppp,debug PPP: ppp-out1: LCP missed echo reply 
00:49:16 async,ppp,debug,packet PPP:  ppp-out1: sent LCP EchoReq id=0x3 
00:49:16 async,ppp,debug,packet PPP:     <magic 0x70f7e389> 
00:49:17 async,ppp,debug PPP: ppp-out1: LCP missed echo reply 
00:49:17 async,ppp,debug,packet PPP:  ppp-out1: sent LCP EchoReq id=0x4 
00:49:17 async,ppp,debug,packet PPP:     <magic 0x70f7e389> 
00:49:18 async,ppp,debug PPP: ppp-out1: LCP missed echo reply 
00:49:18 async,ppp,debug PPP: ppp-out1: LCP lowerdown 
00:49:18 async,ppp,debug PPP: ppp-out1: LCP closed 
00:49:18 async,ppp,debug PPP: ppp-out1: CCP lowerdown 
00:49:18 async,ppp,debug PPP: ppp-out1: BCP lowerdown 
00:49:18 async,ppp,debug PPP: ppp-out1: BCP down event in starting state 
00:49:18 async,ppp,debug PPP: ppp-out1: IPCP lowerdown 
00:49:18 async,ppp,debug PPP: ppp-out1: IPV6CP lowerdown 
00:49:18 async,ppp,debug PPP: ppp-out1: IPV6CP down event in starting state 
00:49:18 async,ppp,debug PPP: ppp-out1: MPLSCP lowerdown 
00:49:18 async,ppp,info ppp-out1: terminating... - peer is not responding 
00:49:18 async,ppp,info PPP: ppp-out1: terminating... - peer is not responding 
00:49:18 async,ppp,debug PPP: ppp-out1: LCP lowerdown 
00:49:18 async,ppp,debug PPP: ppp-out1: LCP down event in starting state 
00:49:18 async,ppp,info ppp-out1: disconnected 
00:49:18 async,ppp,info PPP: ppp-out1: disconnected

It seems to authenticate ok, but then fails to negotiate the network and try as i might I can’t find anything which helps - I have tried different channels, modem strings etc. to no avail.

bump - still not getting anywhere further with this - any ideas appreciated

Just a silly answer…

The apn parameter for mtn in south africa hadn’t to be just “internet” (instead of internet.mtn of your config)?